The O’Shaughnessys were also charged with possessing eight guns – two pistols, two machine guns, two shotguns and two rifles.

At 8:31, cops descended upon 13-29 124th St. and arrested a mother and her three sons – Mary Keller, 41; John Keller, 18; Michael Keller, 22; and Dennis Keller, 18 – and charged them with possessing a quantity of marijuana, hashish, drug paraphernalia and four guns – a pistol and three shotguns.

Brooklyn

Detectives have arrested a Brooklyn man on robbery, kidnapping and child endangerment charges after he allegedly waged a four-month campaign of terror against a co-worker, the co-worker’s wife and their two young daughters.

Dexter Douglas, 31, was arrested Thursday and charged with shaking down his co-worker in his Queens home on three separate occasions dating back to last spring, according to a criminal complaint.

Manhattan

Police are investigating an alleged sexual misconduct incident involving two school kids at the Harlem Boys Choir School, a law-enforcement source said yesterday.

A 10-year-old girl told her teacher that a 14-year-old boy had exposed himself during a Thursday class at the school, located at 2005 Madison Ave., the source said.

The teacher then contacted police, who are investigating the report.

A gun-toting suspect strode into the Inter-Continental Hotel yesterday morning and pulled off a robbery that netted him $25,000 cash, police said.

The incident occurred at 8:15 a.m. when the suspect – described as a well-dressed white man in his 40s – approached a manager of the hotel and demanded money.

He fled after being given approximately $25,000 and is being sought, police said.

Staten Island

Three men were arrested yesterday on charges of offering an undercover cop cash for sex in Mariners Harbor, police said yesterday.

Bruce Miranda, 53; Heriberto Carbajal, 38; and Charles Connors, 47, were each charged with patronizing a prostitute in the fourth-degree – a misdemeanor – for agreeing to pay $20 to an undercover woman cop in return for oral sex on Thursday evening, at South Avenue and Richmond Terrace, police said.

A wayward motorist who has repeatedly had his license suspended was arrested on a battery of felony charges for once again driving an unlicensed vehicle early yesterday, police said.

Craig Davis, 37, was spotted in the driver’s seat of a 1992 Ford Explorer at 1:05 a.m. yesterday at Brook Street and Victory Boulevard with the keys in the ignition, according to a criminal complaint.

The vehicle bore Massachusetts plates, but when police checked Department of Motor Vehicle records, it was determined that the plates hadn’t been issued to the vehicle.

In addition to being cited as an aggravated unlicensed operator, cops charged Craig, whose license was suspended 89 previous times, with carrying no insurance, failing to have an inspection sticker, and not properly registering the vehicle.